Show u wot mai A FURNACE improvement terry te rry orthis of this cai city has jias perfected hud and put in operation ax at the california pali alifornia fornia mill where it i is 8 1 approved and endorsed endors e d aai i imp improved roYed rever erat or roasting Roast wg furnace for chorin izing sil silver ver ores the infanti in vanti conf f mr Mc zinnia ginnis consists in in a series series 4 f of 01 re turn bues 11 aes ues bel beneath belletti leati the he acar avob tn 1 l of the furnace with some abne minor miner un aln 4 provement pro s iiii in regard to bechs ib e d is charging heretofore as all know klo w afie heat passed cassea over ille the 7 pulp 1 spread ori the hearth and then t ien passed off on through the chamne chimney j carrying with but slight hope of reci recovery advery all volatilized ed metal bastin wasting 9 much heat beat and nd to touching g 4 on only ily the surface of the ore opera ted on in the boastin roasting 0 of phu rated ores soon after is applied the sulphur takes fire and of itself furnishes furni a cata al a l mount of heat this under the old plan is not utilized but escapes directly it is claimed that by the system of returning the heat of the burning sulfur is utilized that the bittof odthe he hearth athi being heated simultaneous with the surface the pulp is made lighter and the wasting more born homogenous 0 ge none escaping C and that the operation is completed in two thirds the time and in ill a more inore thorough manner mallner consequently causing using ci a great savin saving in metal metai fuel time and labor mr magin nis is an old hand at the busin business and understands what heis about having we beli believe v built nearly C aly all the furnaces now in use iise in aus AUH tin measures have been taken to procure a patent for this anven tion and for this a complete model has been constructed that shows an improved furn furnace ace in in miniature alis can call be taken apart to show all the features the drawings 0 and specifications are by S B smith sinith esq and fairly represent the invention and the claims austin auslin reveille |